Home / 830,012,762.75-1,145,415,635.98-472,780,484.51

Finding the Fourth Proportional to 830,012,762.75, 1,145,415,635.98 and 472,780,484.51

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Solution

The fourth proportional to 830,012,762.75, 1,145,415,635.98 and 472,780,484.51 is: 652,435,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,012,762.75 : 1,145,415,635.98 = 472,780,484.51 : x
  2. Step 2: Convert to fraction form
    830,012,762.75/1,145,415,635.98 = 472,780,484.51/x
  3. Step 3: Cross multiply
    830,012,762.75x = 1,145,415,635.98 × 472,780,484.51
  4. Step 4: Simplify right side
    830,012,762.75x = 541,530,159,337,045,120
  5. Step 5: Solve for x
    x = 541,530,159,337,045,120/830,012,762.75
  6. Step 6: Final answer
    x = 652,435,942.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.